I have one of each. These are personal accounts for Windows I no longer need as I'm currently not gaming for a while.
I will supply login and you can change password and email etc
Forza 7 has every car unlocked and about 600 million in credits
Can't remember what fh3 has
These are cross play so work for either windows 10 or Xbox
£5 for the pair.
Discord: Sonni#7987